Additive positive effect of warming and elevated nitrogen deposition on Sphagnum biomass production at mid-latitudes.

ABSTRACT: Global warming and increased atmospheric nitrogen (N) deposition can adversely impact Sphagnum moss populations and ecological functions in peatlands. Based on the anticipated increases in temperature and N levels at global scale, we investigated the effects of simultaneous warming and N treatment on growth and ecophysiological activity of Sphagnum papillosum, a predominant moss at mid-latitudes, utilizing a growth chamber experiment. Warming treatments increased the maximum yield of photosystem II (Fv/Fm) of S. papillosum while decreasing the stable carbon isotope ratio. However, warming treatment alone did not cause significant changes in the biomass increase from that of the control. Regarding N treatment, the low N treatment decreased Fv/Fm under the current temperature but did not aff

SUBMITTER: Oishi Y 

PROVIDER: S-EPMC11263368 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature